igneousflock.dev / crafting-interpreters
An implementation of lox, based on _Crafting Interpreters_ by Robert Nystrom
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Commits on main

Add readme main
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Convert to workspace
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Handle undefined object fields and non-object derefs
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Rename `Instance` struct
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Implement class field assignment
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Update dependencies
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Implement deref expressions
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Refactor call arg parsing to make deref parsing easier
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Implement class instatiation
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Implement class parsing
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Store function AST data in separate struct
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Restructure statement parsing to align better with grammar
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Add a couple parser helpers
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Fix many pedantic lints
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Catch a few errors in the resolver
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Implement the resolver
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Make functions close over their environment correctly
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Break up `callable` module
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Implement return statements
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Parse return statements
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Remove `print_rpn`
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Implement custom function execution
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Don't exit repl after runtime error
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Make interpreting functions into methods
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Use a trait object for interpreter output
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Parse function declarations
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Pass function args through child env
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Implement native functions and function calling
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Parse function calls
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Add pre-commit hooks
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Parse for loops and desguar them to while loops
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Implement while loops
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Implement logical expressions
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Trim output in statement tests
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Implement if/else statements
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Fix clippy lints and import formatting
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Implement block execution and nested envs
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Gracefully handle unclosed blocks
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Parse block statements
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Implement variable assignment
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Parse simple assignments
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Synchronize parser state when an error is encountered
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Interpret statements with persistent state
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Parse variable declarations an accesses
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Wrap parser tests in sub-modules
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Use strum for rpn printing
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Split up AST module
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Capture interpreter output with stdout as default
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Break up expression interpreting into multiple methods
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Implement expression and print statements
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Fix clippy lints
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Fix binary operator precedence while parsing
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Add RPN printer for expressions
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Implement binary expression interpreting
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Don't fail when `env` file isn't present
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Reorganize imports
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Simplify primary expr parsing
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Gracefully handle empty repl line
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Write more compact debug impl for `Spanned`
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Wrap remaining AST nodes with `Spanned`
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